Let me look up Esper Affinity in Modern to understand what's currently being tracked.
The overview resolved to Pauper, not Modern. Let me check what Affinity/Ninja-style archetypes exist in Modern, and also search for the Ninja card to understand the deck better.
Good context. Now let me check what cards appear in Affinity in Modern specifically to see if Ninja Teen / go-wide Esper builds are being captured, and also look for any separate Esper Affinity or Ninja Affinity archetype in Modern.
Now I have what I need. Let me check specifically how TMNT Ninja cards appear across Modern archetypes and whether there's any dedicated Esper Affinity bucket in Modern.
Now I have a clear picture. Let me also check the TMNT Foot-clan/Ninja-themed cards more broadly in Modern to see if any build is being lumped elsewhere.
That's a clear answer. Here's the full picture:
The short answer to @Kahlt_'s question is: that build does not appear to have its own archetype bucket in the database yet, and it's also not being captured as a meaningful sub-variant inside the tracked "Affinity" archetype.
The Modern "Affinity" archetype in the database is overwhelmingly the Izzet/artifact-storm shell -- Mox Opal, Urza's Saga, Mishra's Bauble, Kappa Cannoneer, Pinnacle Emissary, Weapons Manufacturing, etc. -- with near-100% presence on its core package. TMNT Ninja cards like Ninja Teen, Foot Ninjas, Foot Elite, and Karai, Future of the Foot show zero matches across all Modern tournament entries in the database from the past three months. The only TMNT-era card getting any meaningful play in Modern Affinity is Skateboard (95% presence) and Krang, Master Mind as a fringe include (~10%), both of which fit the existing artifact gameplan rather than a go-wide Ninja token strategy.
There is no standalone "Esper Affinity" archetype in Modern tracked in the database at all -- the only Esper archetypes with any volume are Esper Blink (667 entries, clearly a different deck), with Esper Scam, Esper Frog, etc. all being small and unrelated. If the go-wide Ninja build is seeing real tournament play, it is either being rolled into a catch-all bucket or hasn't yet generated enough MTGO/paper results to get its own archetype tag. Worth watching post-TMT, but right now the data doesn't show it as a tracked presence.
Sources: Data covers Modern tournaments from 2026-07-01 through 2026-09-28 across 156+ tracked events.